.TRANSFORM.Nuclear.ReactorKinetics.Functions.Initial_powerBased_powerHistory

Information

Determines the initial neutron precursor power-based concentration and decay heat based on power history

Interface

function Initial_powerBased_powerHistory
  input SI.Power[:, 2] history "Power history up to simulation time=0, [t,Q]";
  input TRANSFORM.Units.InverseTime[:] lambdas "Decay constants for each precursor group";
  input TRANSFORM.Units.NonDim[size(lambdas, 1)] alphas "Normalized precursor fractions [betas = alphas*Beta]";
  input TRANSFORM.Units.NonDim Beta "Effective delayed neutron fraction";
  input SI.Time Lambda "Prompt neutron generation time";
  input TRANSFORM.Units.InverseTime[:] lambdas_dh "Decay constants for each group";
  input Units.NonDim efs[size(lambdas_dh, 1)] "Decay-heat fraction of fission power";
  input Boolean includeDH = false "=true if power history includes decay heat";
  input SI.Power[size(lambdas, 1)] Cs_0 = fill(0, size(lambdas, 1)) "Precursor concentration at history time = 0";
  input SI.Energy[size(lambdas_dh, 1)] Es_0 = fill(0, size(lambdas_dh, 1)) "Decay-heat concentration at history time = 0";
  output SI.Power[size(lambdas, 1)] Cs;
  output SI.Energy[size(lambdas_dh, 1)] Es;
end Initial_powerBased_powerHistory;